The amount of water a child needs varies based on age, weight, and activity level. Generally, children aged 1-3 years need about 4 cups (1 liter) of water per day, those aged 4-8 years need about 5 cups (1.2 liters), and older children and adolescents need 7-8 cups (1.5-2 liters) daily. Encouraging regular water intake can help maintain proper hydration.
